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US 11,387,492 B2Granted
Rechargeable non-aqueous sodium-air batteries
AssigneeUchicago Argonne, LLC
InventorsXuanxuan Bi, Jun Lu, Khalil Amine
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Abstract
An electrochemical device includes an air cathode using air as the cathodic gas; a discharge product of sodium peroxide dihydrate; an anode comprising sodium metal; a porous fiber separator; and a non-aqueous electrolyte comprising a sodium salt and a solvent.
Claims17
An electrochemical device comprising:
- an air cathode comprising air and a catalyst comprising Pt, Pd, Au, Ru, Ir, Ag, PtNi, PtAu, PtCu, PtRu, PtPd, MnO2, NiO, Co3O4, CeO2, V2O5, Fe2O3, ZnO, CuO, NaMnO2, or a combination of any two or more thereof;
- an anode comprising a metal;
- a discharge product comprising sodium peroxide dihydrate (Na2O2.2H2O) and NaOH.H2O2;
- a porous separator;
- and
- a non-aqueous electrolyte comprising a sodium salt and a solvent.
3 more elements
A process of discharging a sodium-air battery, the process comprising discharging a sodium-air battery to form a discharged sodium-air battery comprising:
- an air cathode comprising a catalyst comprising Pt, Pd, Au, Ru, Ir, Ag, PtNi, PtAu, PtCu, PtRu, PtPd, MnO2, NiO, Co3O4, CeO2, V2O5, Fe2O3, ZnO, CuO, NaMnO2, or a combination of any two or more thereof;
- and
- a discharge product of sodium peroxide dihydrate (Na2O2.2H2O) and NaOH.H2O2.
Dependencies are inferred from the claim text.